ASD33K04N Equivalent & Substitute Parts

Part Overview

The ASD33K04N is a keylock switch manufactured by IDEC, featuring 3-position, 4PST-NC (4 Pole Single Throw - Normally Closed) configuration with 10A AC and 8A DC current ratings at 110 VAC / 24 VDC. This component is designed for panel-mount applications requiring secure key-operated switching with IP54 environmental protection. The ASD33K04N is currently classified as obsolete, making identification of compatible substitute parts essential for system maintenance, repair, and replacement applications.

Substiute Parts

ASD33K04N

IDECIn Stock: 984ASD33K04N Datasheet

Current PartRFQ

ASD33K04NU

IDECIn Stock: 1031ASD33K04NU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ASD33K04N is determined by strict alignment with the following critical parameters:

• Circuit Configuration: 4PST-NC topology
• Number of Positions: 3-position operation
• Switch Function: Mom-On-Mom actuation
• Current Ratings: Minimum 10A AC / 8A DC capability
• Voltage Ratings: 110V AC / 24V DC minimum
• Actuator Type: Flat key operation
• Contact Material: Silver (Ag)
• Mounting Type: Panel mount with circular 30.50mm cutout
• Termination Style: Screw terminal configuration
• Environmental Rating: IP54 protection minimum
• Operating Temperature: -25°C to 50°C range
• Mechanical Life: 500,000 cycles minimum
• Compliance: ROHS3 compliant

The ASD33K04NU is identified as a direct substitute based on manufacturer lineage within the IDEC product family and compatibility with the specified electrical and mechanical parameters.

Parameter Comparison

Engineering Selection Recommendations

The ASD33K04NU is the designated substitute for the obsolete ASD33K04N. Selection of the ASD33K04NU is supported by the following factors:

• Product Status Alignment: The ASD33K04NU maintains active production status, ensuring availability and supply chain continuity for replacement applications.
• Regulatory Compliance: Both parts maintain ROHS3 compliance, satisfying environmental and hazardous substance restrictions.
• Moisture Sensitivity: Identical MSL rating (1 - Unlimited) confirms equivalent handling and storage requirements.
• Manufacturer Continuity: Both components are manufactured by IDEC within the same base product family (ASD33), indicating design and functional compatibility.

Frequently Asked Questions (FAQ)

Q: Can the ASD33K04NU directly replace the ASD33K04N in existing installations?

A: The ASD33K04NU is the designated substitute for the obsolete ASD33K04N. Compatibility is based on shared electrical specifications, mechanical mounting dimensions, and termination configuration. Physical installation verification is required to confirm panel cutout alignment and depth clearance.

Q: What is the difference between the ASD33K04N and ASD33K04NU part numbers?

A: The suffix designation differentiates product variants within the IDEC ASD33 keylock switch family. Both parts share the same base product number (ASD33) and are functionally equivalent for the specified electrical and mechanical parameters.

Q: Are there any compliance or certification differences between these parts?

A: Both the ASD33K04N and ASD33K04NU maintain ROHS3 compliance and identical Moisture Sensitivity Level (MSL) ratings. No compliance or certification differences exist between the two parts.

Q: What packaging options are available for the ASD33K04NU?

A: The ASD33K04NU is supplied in bulk packaging. Specific quantity configurations should be verified with the supplier based on application requirements.

Q: Is the ASD33K04NU suitable for the same operating temperature range as the ASD33K04N?

A: Operating temperature specifications are determined by the base product design. Verification of temperature range compatibility with the ASD33K04NU should be confirmed through the manufacturer's current technical documentation.